Hello,

Jens Lange <jens.lange.de@gmail.com> writes:

> What exactly did you do?
> ===================
> 1. Configure block below in custom-set-variables.
>
>  '(org-emphasis-alist
>    (quote
>     (
>      ("!" org-habit-overdue-face)
>      ("%" org-habit-alert-face)
>      ("*" bold)
>      ("/" italic)
>      ("_" underline)
>      ("=" org-verbatim verbatim)
>      ("~" org-code verbatim)
>      ("+" (:strike-through t))
>      )))
>
> 2. Type %blabla% and !blabla! in org-mode

Adding new syntax is not supported. The variable exists to allow users
to change the face of already existing constructs.

You may want to tweak font-lock related variables, e.g.,
`org-font-lock-hook' to achieve that effect.

Regards,

--
Nicolas Goaziou